Home / 4,001.94-5,515.19-2,880.97

Finding the Fourth Proportional to 4,001.94, 5,515.19 and 2,880.97

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Solution

The fourth proportional to 4,001.94, 5,515.19 and 2,880.97 is: 3,970.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,001.94 : 5,515.19 = 2,880.97 : x
  2. Step 2: Convert to fraction form
    4,001.94/5,515.19 = 2,880.97/x
  3. Step 3: Cross multiply
    4,001.94x = 5,515.19 × 2,880.97
  4. Step 4: Simplify right side
    4,001.94x = 15,889,079.55
  5. Step 5: Solve for x
    x = 15,889,079.55/4,001.94
  6. Step 6: Final answer
    x = 3,970.34

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.